I haven't really used the noise tracking/snore detection stuff, but I've been using Sleep as Android for a few years: https://play.google.com/store/apps/details

I haven't really used the noise tracking/snore detection stuff, but I've been using Sleep as Android for a few years: https://play.google.com/store/apps/details?id=com.urbandroid.sleep https://play.google.com/store/apps/details?id=com.urbandroid...